Some time later, when you attempt to repeat the process, ssh will fail with error like:

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
34:df:34:df:34:df:34:df:34:df:34:df:34:df:34:df.
Please contact your system administrator.
Add correct host key in /home/<user>/.ssh/known_hosts to get rid of this message.
Offending key in /home/<user>/.ssh/known_hosts:3
RSA host key for <servername> has changed and you have requested strict checking.Host key verification failed.

This is caused by stopping and restarting MobaXterm on the Windows server; The SSH Server fingerprint will change.

description

MobaXterm is the preferred method for facilitating X and SSH between Windows and Unix/Linux. A single portable exe painlessly facilitates the use of standard tools like rsync. This recurs at most clients for transferring 22.7+ GB of 11.1.2.4.000 Oracle EPM Linux files and patches to a Linux server that is not connected to the Internet.Additional details are in the MobaXterm toolbox post.

In a normal use case (not a temporary SSH server) one should update the offending key, as long as the same hostname is re-used.ssh-keygen -R <hostname>

“In this and other fora I express my own opinions. I do not express the opinions of nor do I express the positions of my employer. There are also re-expressions of others’ opinions for which every effort is made to appropriately credit. In case of exception, let me know and I will work with you to resolve. Thank you for your patience with this disclaimer, and as always please don’t double-dip your chip.”